i8254: Pass alternative IRQ output object on initialization

HPET legacy emulation will require control over the PIT IRQ output. To
enable this, add support for an alternative IRQ output object to the PIT
factory function. If the isa_irq number is < 0, this object will be
used.

This also removes the IRQ number property from the PIT class as we now
use a generic GPIO output pin that is connected by the factory function.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

9 files changed, 12 insertions, 12 deletions

diff --git a/hw/alpha_dp264.c b/hw/alpha_dp264.c
index 4c0efd3..ea0fd95 100644
--- a/hw/alpha_dp264.c
+++ b/hw/alpha_dp264.c
@@ -73,7 +73,7 @@ static void clipper_init(ram_addr_t ram_size,
                            clipper_pci_map_irq);
 
     rtc_init(isa_bus, 1980, rtc_irq);
-    pit_init(isa_bus, 0x40, 0);
+    pit_init(isa_bus, 0x40, 0, NULL);
     isa_create_simple(isa_bus, "i8042");
 
     /* VGA setup.  Don't bother loading the bios.  */
diff --git a/hw/i82378.c b/hw/i82378.c
index d3c4ac5..cc41564 100644
--- a/hw/i82378.c
+++ b/hw/i82378.c
@@ -192,7 +192,7 @@ static void i82378_init(DeviceState *dev, I82378State *s)
     isa_bus_irqs(isabus, s->i8259);
 
     /* 1 82C54 (pit) */
-    pit = pit_init(isabus, 0x40, 0);
+    pit = pit_init(isabus, 0x40, 0, NULL);
 
     /* speaker */
     pcspk_init(pit);
diff --git a/hw/i8254.c b/hw/i8254.c
index 71ea849..aa7e9fc 100644
--- a/hw/i8254.c
+++ b/hw/i8254.c
@@ -57,7 +57,6 @@ typedef struct PITChannelState {
 typedef struct PITState {
     ISADevice dev;
     MemoryRegion ioports;
-    uint32_t irq;
     uint32_t iobase;
     PITChannelState channels[3];
 } PITState;
@@ -532,7 +531,7 @@ static int pit_initfn(ISADevice *dev)
     s = &pit->channels[0];
     /* the timer 0 is connected to an IRQ */
     s->irq_timer = qemu_new_timer_ns(vm_clock, pit_irq_timer, s);
-    s->irq = isa_get_irq(dev, pit->irq);
+    qdev_init_gpio_out(&dev->qdev, &s->irq, 1);
 
     memory_region_init_io(&pit->ioports, &pit_ioport_ops, pit, "pit", 4);
     isa_register_ioport(dev, &pit->ioports, pit->iobase);
@@ -543,7 +542,6 @@ static int pit_initfn(ISADevice *dev)
 }
 
 static Property pit_properties[] = {
-    DEFINE_PROP_UINT32("irq", PITState, irq,  -1),
     DEFINE_PROP_HEX32("iobase", PITState, iobase,  -1),
     DEFINE_PROP_END_OF_LIST(),
 };
diff --git a/hw/i8254.h b/hw/i8254.h
index cd3111c..fc64a63 100644
--- a/hw/i8254.h
+++ b/hw/i8254.h
@@ -30,14 +30,16 @@
 
 #define PIT_FREQ 1193182
 
-static inline ISADevice *pit_init(ISABus *bus, int base, int irq)
+static inline ISADevice *pit_init(ISABus *bus, int base, int isa_irq,
+                                  qemu_irq alt_irq)
 {
     ISADevice *dev;
 
     dev = isa_create(bus, "isa-pit");
     qdev_prop_set_uint32(&dev->qdev, "iobase", base);
-    qdev_prop_set_uint32(&dev->qdev, "irq", irq);
     qdev_init_nofail(&dev->qdev);
+    qdev_connect_gpio_out(&dev->qdev, 0,
+                          isa_irq >= 0 ? isa_get_irq(dev, isa_irq) : alt_irq);
 
     return dev;
 }
diff --git a/hw/mips_fulong2e.c b/hw/mips_fulong2e.c
index ead72ae..e3ba9dd 100644
--- a/hw/mips_fulong2e.c
+++ b/hw/mips_fulong2e.c
@@ -364,7 +364,7 @@ static void mips_fulong2e_init(ram_addr_t ram_size, const char *boot_device,
     smbus_eeprom_init(smbus, 1, eeprom_spd, sizeof(eeprom_spd));
 
     /* init other devices */
-    pit = pit_init(isa_bus, 0x40, 0);
+    pit = pit_init(isa_bus, 0x40, 0, NULL);
     cpu_exit_irq = qemu_allocate_irqs(cpu_request_exit, NULL, 1);
     DMA_init(0, cpu_exit_irq);
 
diff --git a/hw/mips_jazz.c b/hw/mips_jazz.c
index 61dee4d..b61b218 100644
--- a/hw/mips_jazz.c
+++ b/hw/mips_jazz.c
@@ -192,7 +192,7 @@ static void mips_jazz_init(MemoryRegion *address_space,
     isa_bus_irqs(isa_bus, i8259);
     cpu_exit_irq = qemu_allocate_irqs(cpu_request_exit, NULL, 1);
     DMA_init(0, cpu_exit_irq);
-    pit = pit_init(isa_bus, 0x40, 0);
+    pit = pit_init(isa_bus, 0x40, 0, NULL);
     pcspk_init(pit);
 
     /* ISA IO space at 0x90000000 */
diff --git a/hw/mips_malta.c b/hw/mips_malta.c
index 692f79b..86a5fbb 100644
--- a/hw/mips_malta.c
+++ b/hw/mips_malta.c
@@ -970,7 +970,7 @@ void mips_malta_init (ram_addr_t ram_size,
                           isa_get_irq(NULL, 9), NULL, NULL, 0);
     /* TODO: Populate SPD eeprom data.  */
     smbus_eeprom_init(smbus, 8, NULL, 0);
-    pit = pit_init(isa_bus, 0x40, 0);
+    pit = pit_init(isa_bus, 0x40, 0, NULL);
     cpu_exit_irq = qemu_allocate_irqs(cpu_request_exit, NULL, 1);
     DMA_init(0, cpu_exit_irq);
 
diff --git a/hw/mips_r4k.c b/hw/mips_r4k.c
index 1b3ec2d..83401f0 100644
--- a/hw/mips_r4k.c
+++ b/hw/mips_r4k.c
@@ -270,7 +270,7 @@ void mips_r4k_init (ram_addr_t ram_size,
     isa_mmio_init(0x14000000, 0x00010000);
     isa_mem_base = 0x10000000;
 
-    pit = pit_init(isa_bus, 0x40, 0);
+    pit = pit_init(isa_bus, 0x40, 0, NULL);
 
     for(i = 0; i < MAX_SERIAL_PORTS; i++) {
         if (serial_hds[i]) {
diff --git a/hw/pc.c b/hw/pc.c
index 435fe4d..ad65a5d 100644
--- a/hw/pc.c
+++ b/hw/pc.c
@@ -1162,7 +1162,7 @@ void pc_basic_device_init(ISABus *isa_bus, qemu_irq *gsi,
 
     qemu_register_boot_set(pc_boot_set, *rtc_state);
 
-    pit = pit_init(isa_bus, 0x40, 0);
+    pit = pit_init(isa_bus, 0x40, 0, NULL);
     pcspk_init(pit);
 
     for(i = 0; i < MAX_SERIAL_PORTS; i++) {